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interfaces for XSLT 2.0 templates

From: Clarke, Agnes <Agnes_Clarke@nl.compuware.com>
Date: Thu, 18 Jul 2002 13:47:33 +0200
Message-ID: <D913221A882FD31198D90008C75D69090667FA49@cwnl-ams-pri01.nl.compuware.com>
To: "'xsl-editors@w3.org'" <xsl-editors@w3.org>


I often find myself defining templates that require numerous parameters.
This leads to two problems:

1. making modifications to the list of parameters - I have to do it in each

2. forgetting a parameter, and so losing critical data without receiving a

So I would like to formally specify the interfaces of my templates, using a
syntax like this:

<xsl:interface name="interface1">
   <xsl:param name="p1" />
   <xsl:param name="p2" />
   <xsl:param name="p3" />

<xsl:template name="foo" interface="interface1" />

This saves many, many lines of code in certain kinds of stylesheet, and
eliminates many simple errors.

It also makes possible a simplified syntax for parameter invocation:

<xsl:apply-templates select="*" interface="interface1" params="('string',
'str2', $variable)" />

Which is equivalent to:

<xsl:apply-templates select="*">
   <xsl:param name="p1" select="'string'" />
   <xsl:param name="p2" select="'str2'" />
   <xsl:param name="p3" select="$variable" />


Agnes Clarke

All men's miseries derive from not being
able to sit quiet in a room alone.
-- Blaise Pascal (1623 - 1662)

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Received on Thursday, 18 July 2002 07:47:36 UTC

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